#VU61842 Time-of-check Time-of-use (TOCTOU) Race Condition in Qualcomm products - CVE-2021-30347
Published: April 4, 2022
Vulnerability identifier: #VU61842
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-30347
CWE-ID: CWE-367
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
AR8035
QCA6390
QCA6391
QCA6426
QCA6436
QCA6574A
QCA6595AU
QCA6696
QCA8081
QCA8337
QCM6490
QCS6490
QCX315
SA515M
SD8Gen15G
SD480
SD678
SD6905G
SD720G
SD750G
SD765
SD765G
SD768G
SD778G
SD780G
SD8655G
SD870
SD8885G
SDX55M
SDX65
SDXR25G
SM6250
SM6250P
SM6375
SM7250P
SM7315
SM7325P
WCD9341
WCD9360
WCD9370
WCD9375
WCD9380
WCD9385
WCN3950
WCN3980
WCN3988
WCN3991
WCN3998
WCN6740
WCN6750
WCN6850
WCN6851
WCN6855
WCN6856
WSA8810
WSA8815
WSA8830
WSA8835
QCA6574AU
SD675
SD730
SD888
SDX55
AR8035
QCA6390
QCA6391
QCA6426
QCA6436
QCA6574A
QCA6595AU
QCA6696
QCA8081
QCA8337
QCM6490
QCS6490
QCX315
SA515M
SD8Gen15G
SD480
SD678
SD6905G
SD720G
SD750G
SD765
SD765G
SD768G
SD778G
SD780G
SD8655G
SD870
SD8885G
SDX55M
SDX65
SDXR25G
SM6250
SM6250P
SM6375
SM7250P
SM7315
SM7325P
WCD9341
WCD9360
WCD9370
WCD9375
WCD9380
WCD9385
WCN3950
WCN3980
WCN3988
WCN3991
WCN3998
WCN6740
WCN6750
WCN6850
WCN6851
WCN6855
WCN6856
WSA8810
WSA8815
WSA8830
WSA8835
QCA6574AU
SD675
SD730
SD888
SDX55
Software vendor:
Qualcomm
Qualcomm
Description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a race condition between PDCP and RRC tasks in Modem component when processing RPC Command packets. A remote attacker can send specially crafted packets to the device and execute arbitrary code on the system.Remediation
Install updates from vendor's website.